linux-kernel - drivers/firmware/efi/libstub/alignedmem.c:27: warning: Function parameter or member 'memory_type' not described in 'efi_allocate_pages

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Message-ID: <202308172116.yPoBelLU-lkp@intel.com>
Date:   Thu, 17 Aug 2023 21:28:17 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: drivers/firmware/efi/libstub/alignedmem.c:27: warning: Function
 parameter or member 'memory_type' not described in
 'efi_allocate_pages_aligned'

Hi Ard,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   4853c74bd7ab7fdb83f319bd9ace8a08c031e9b6
commit: 9cf42bca30e98a1c6c9e8abf876940a551eaa3d1 efi: libstub: use EFI_LOADER_CODE region when moving the kernel in memory
date:   9 months ago
config: x86_64-rhel-8.3 (https://download.01.org/0day-ci/archive/20230817/202308172116.yPoBelLU-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230817/202308172116.yPoBelLU-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308172116.yPoBelLU-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/firmware/efi/libstub/alignedmem.c:27: warning: Function parameter or member 'memory_type' not described in 'efi_allocate_pages_aligned'


vim +27 drivers/firmware/efi/libstub/alignedmem.c

43b1df0e013c25 Ard Biesheuvel 2020-03-27   7  
43b1df0e013c25 Ard Biesheuvel 2020-03-27   8  /**
43b1df0e013c25 Ard Biesheuvel 2020-03-27   9   * efi_allocate_pages_aligned() - Allocate memory pages
43b1df0e013c25 Ard Biesheuvel 2020-03-27  10   * @size:	minimum number of bytes to allocate
43b1df0e013c25 Ard Biesheuvel 2020-03-27  11   * @addr:	On return the address of the first allocated page. The first
43b1df0e013c25 Ard Biesheuvel 2020-03-27  12   *		allocated page has alignment EFI_ALLOC_ALIGN which is an
43b1df0e013c25 Ard Biesheuvel 2020-03-27  13   *		architecture dependent multiple of the page size.
43b1df0e013c25 Ard Biesheuvel 2020-03-27  14   * @max:	the address that the last allocated memory page shall not
43b1df0e013c25 Ard Biesheuvel 2020-03-27  15   *		exceed
43b1df0e013c25 Ard Biesheuvel 2020-03-27  16   * @align:	minimum alignment of the base of the allocation
43b1df0e013c25 Ard Biesheuvel 2020-03-27  17   *
43b1df0e013c25 Ard Biesheuvel 2020-03-27  18   * Allocate pages as EFI_LOADER_DATA. The allocated pages are aligned according
43b1df0e013c25 Ard Biesheuvel 2020-03-27  19   * to @align, which should be >= EFI_ALLOC_ALIGN. The last allocated page will
43b1df0e013c25 Ard Biesheuvel 2020-03-27  20   * not exceed the address given by @max.
43b1df0e013c25 Ard Biesheuvel 2020-03-27  21   *
43b1df0e013c25 Ard Biesheuvel 2020-03-27  22   * Return:	status code
43b1df0e013c25 Ard Biesheuvel 2020-03-27  23   */
43b1df0e013c25 Ard Biesheuvel 2020-03-27  24  efi_status_t efi_allocate_pages_aligned(unsigned long size, unsigned long *addr,
9cf42bca30e98a Ard Biesheuvel 2022-08-02  25  					unsigned long max, unsigned long align,
9cf42bca30e98a Ard Biesheuvel 2022-08-02  26  					int memory_type)
43b1df0e013c25 Ard Biesheuvel 2020-03-27 @27  {

:::::: The code at line 27 was first introduced by commit
:::::: 43b1df0e013c25abb536699f46d0e9f291b586a0 efi/libstub: Add API function to allocate aligned memory

:::::: TO: Ard Biesheuvel <ardb@...nel.org>
:::::: CC: Ard Biesheuvel <ardb@...nel.org>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki